Developer reply by Lab5
Rated 5 out of 5 stars
At first I didn't think it was working. I tried colouring a top level folder and the add-on was grayed out. However it works on any sub-folders. So it seems to work, thanks!
Thank you for your feedback.
I am planning to include the colorability of thos special folders as well. Will need a little time, but will very probably do.
To create your own collections, you must have a Mozilla Add-ons account.